<template>
  <div>
    <!-- 面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">
        首页
      </el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 表单区域 -->
    <el-card>
      <!-- 搜索与添加用户区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入查询的用户名" clearable v-model="queryInfo.query">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>

        </el-col>
      </el-row>

      <!-- 用户表单区域 -->

      <el-table :data="userlist" stripe style="width: 100%">
        <el-table-column type="index">
        </el-table-column>
        <el-table-column prop="username" label="姓名">
        </el-table-column>
        <el-table-column prop="email" label="邮箱">
        </el-table-column>
        <el-table-column prop="mobile" label="电话">
        </el-table-column>
        <el-table-column prop="role_name" label="角色">
        </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state">
            </el-switch>
          </template>
        </el-table-column>

        <!-- 操作按钮区域 -->
        <el-table-column label="操作" width="250px">
          <template slot-scope="scope">

            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)">
            </el-button>

            <!-- 删除按钮 -->
              <el-button type="danger"
                icon="el-icon-delete"
                size="mini" @click="removeUserById(scope.row.id)">
              </el-button>

          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <div class="block">

        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </div>

      <!-- 添加用户DIALOG -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" center @close="formRest">

        <!-- DIALOG FORM表单区域 -->
        <el-form :model="addForm" :rules="addFormRefRules" ref="addFormRef">
          <el-form-item label="用户名称" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="用户密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="用户邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="用户电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <!-- DIALOG底部 -->
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户的对话框 -->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username"> </el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>


</template>

<script>
  export default {
    data() {

      // 验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }

        cb(new Error('请输入合法的邮箱'))
      }

      // 验证手机号的规则
      var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if (regMobile.test(value)) {
          return cb()
        }

        cb(new Error('请输入合法的手机号'))
      }

      return {
        addFormRefRules: {
          username: [{
              required: true,
              message: '请输入用户名',
              trigger: 'blur'
            },
            {
              min: 3,
              max: 10,
              message: '长度在 3 到 10 个字符',
              trigger: 'blur'
            }
          ],
          password: [{
              required: true,
              message: '请输入登录密码',
              trigger: 'blur'
            },
            {
              min: 6,
              max: 10,
              message: '长度在6到10个字符',
              trigger: 'blur'
            }
          ],
          email: [{
              required: true,
              message: '请输入邮箱',
              trigger: 'blur'
            },
            {
              validator: checkEmail,
              trigger: 'blur'
            }
          ],
          mobile: [{
              required: true,
              message: '请输入手机号',
              trigger: 'blur'
            },
            {
              validator: checkMobile,
              trigger: 'blur'
            }
          ]

        },
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: '',
        },
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 2
        },
        userlist: [],
        total: 0,
        addDialogVisible: false,
        // 添加表单的验证规则对象
        addFormRules: {
          username: [{
              required: true,
              message: '请输入用户名',
              trigger: 'blur'
            },
            {
              min: 3,
              max: 10,
              message: '用户名的长度在3~10个字符之间',
              trigger: 'blur'
            }
          ],
          password: [{
              required: true,
              message: '请输入密码',
              trigger: 'blur'
            },
            {
              min: 6,
              max: 15,
              message: '用户名的长度在6~15个字符之间',
              trigger: 'blur'
            }
          ],
          email: [{
              required: true,
              message: '请输入邮箱',
              trigger: 'blur'
            },
            {
              validator: checkEmail,
              trigger: 'blur'
            }
          ],
          mobile: [{
              required: true,
              message: '请输入手机号',
              trigger: 'blur'
            },
            {
              validator: checkMobile,
              trigger: 'blur'
            }
          ]
        },
        // 控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        // 查询到的用户信息对象
        editForm: {},
        // 修改表单的验证规则对象
        editFormRules: {
          email: [{
              required: true,
              message: '请输入用户邮箱',
              trigger: 'blur'
            },
            {
              validator: checkEmail,
              trigger: 'blur'
            }
          ],
          mobile: [{
              required: true,
              message: '请输入用户手机',
              trigger: 'blur'
            },
            {
              validator: checkMobile,
              trigger: 'blur'
            }
          ]
        }
      }
    },
    created() {
      this.getUserList()
    },

    methods: {
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return;
          const {
            data: res
          } = await this.$http.post("users", this.addForm);
          if (res.meta.status !== 201) return this.$message.error("添加用户失败");
          this.$message.success("添加用户成功");
          this.addDialogVisible = false;
          this.getUserList()


        })

      },

      // 展示编辑用户的对话框
      async showEditDialog(id) {
        // console.log(id)
        const {
          data: res
        } = await this.$http.get('users/' + id)

        if (res.meta.status !== 200) {
          return this.$message.error('查询用户信息失败！')
        }

        this.editForm = res.data
        this.editDialogVisible = true
      },
      // 监听修改用户对话框的关闭事件
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      // 修改用户信息并提交
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) return
          // 发起修改用户信息的数据请求
          const {
            data: res
          } = await this.$http.put(
            'users/' + this.editForm.id, {
              email: this.editForm.email,
              mobile: this.editForm.mobile
            }
          )

          if (res.meta.status !== 200) {
            return this.$message.error('更新用户信息失败！')
          }

          // 关闭对话框
          this.editDialogVisible = false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          this.$message.success('更新用户信息成功！')
        })
      },


      formRest() {
        this.$refs.addFormRef.resetFields()
      },

      // 获取用户列表
      async getUserList() {
        const {
          data: res
        } = await this.$http.get('users', {
          params: this.queryInfo
        })
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户列表失败！')
        }
        this.userlist = res.data.users
        this.total = res.data.total

      },

      // 根据Id删除对应的用户信息
          async removeUserById(id) {
            // 弹框询问用户是否删除数据
            const confirmResult = await this.$confirm(
              '此操作将永久删除该用户, 是否继续?',
              '提示',
              {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
              }
            ).catch(err => err)

            // 如果用户确认删除，则返回值为字符串 confirm
            // 如果用户取消了删除，则返回值为字符串 cancel
            // console.log(confirmResult)
            if (confirmResult !== 'confirm') {
              return this.$message.info('已取消删除')
            }

            const { data: res } = await this.$http.delete('users/' + id)

            if (res.meta.status !== 200) {
              return this.$message.error('删除用户失败！')
            }

            this.$message.success('删除用户成功！')
            this.getUserList()
          },

      // 处理分页切换
      handleSizeChange(val) {
        this.queryInfo.pagesize = val;
        this.getUserList();
      },
      handleCurrentChange(val) {
        this.queryInfo.pagenum = val;
        this.getUserList();
      },

    }
  }
</script>

<style lang="less" scoped>

</style>
